A mole of M&M's Merlo, Carmela; Turner, Kathleen E.Engaging students by asking the question: How thick would the layer of M&M candies be if we covered the continental United States with a mole of these candies? Compare this to a mole of water.Merlo, Carmela; Turner, Kathleen E. J. Chem. Educ.1993, 70, 453.

Avogadro?s Bubbly AdventureSmall amounts of gases are soluble, or dissolve, in water.,Two of these gases are oxygen and carbon dioxide. For,example, carbon dioxide gas is what gives soft drinks their ?fizz?.,And fish use oxygen dissolved in water for their body chemistry,,much like humans do. When there is not enough oxygen dissolved in,the water, fish can ?suffocate?. In this activity students study the,solubility of gas in water at different temperatures to see whether temperature changes this property.